Synonyms: wacky, whacky, zany, goofy, cockamamie, cockamamy, sappy, silly
Definition: ludicrous, foolish
Usage: gave me a cockamamie reason for not going; wore a goofy hat; a silly idea; some wacky plan for selling more books
Similar words: foolish
Definition: devoid of good sense or judgment
Usage: foolish remarks; a foolish decision